Data Sheet

ADP195

Rev. C | Page 9 of 12

THEORY OF OPERATION

GND

EN

VIN

VOUT

ADP195

LEVEL SHIFT

AND SLEW

RATE CONTROL

REVERSE

POLARITY

PROTECTION

Figure 21. Functional Block Diagram

The ADP195 is a high-side PMOS load switch. It is designed for

supply operation between 1.1 V to 3.6 V. The PMOS load switch

supports greater than 1 A of continuous current. It is a low

quiescent current device with a nominal 4 MΩ pull-down

resistor on its enable pin (EN).

The reverse current protection circuitry prevents current flow

backward through the ADP195 when the output voltage is greater

than the input voltage. A comparator senses the difference

between the input and output voltages. When the difference

between the input voltage and output voltage exceeds 75 mV,

The packaging is a space-saving 1.0 mm × 1.0 mm, 4-ball WLCSP.

The ADP195 is also available in a 2 mm × 2 mm × 0.55 mm,

0.65 mm pitch LFCSP.